Vessöö Sand Pit is an artificial reef site located in the Helsinki Region of Finland. This shore-entry dive is suitable for beginners, offering depths ranging from 3 to 14 metres with an average depth of 3 metres. Divers should be prepared for cold water conditions, as temperatures fluctuate between 1 and 15 degrees Celsius throughout the year. The site typically features mild currents, and a standard dive duration is approximately 30 minutes. Due to the cold water environment, appropriate thermal protection is essential for all divers visiting this location.

Chrysanth is a reef dive located off the southern Finnish coast, offering depths between 14 and 19 metres. The site features a compact reef structure suitable for divers who prefer intimate navigation, with visibility typically around 5 metres. As a cold-water environment, temperatures range from 1 to 14 degrees Celsius, necessitating the use of a drysuit. There is no significant current, allowing for a controlled pace. The habitat supports a variety of temperate marine life and invertebrates typical of the region. Divers should be prepared for a thermocline during descent and maintain awareness of boat traffic during surface intervals and ascents.

Kultakaleeri is a reef and seagrass site located in the Helsinki Region of Finland. Accessible only by boat, the site features depths ranging from 7 to 14 metres, with an average depth of 10 metres. Divers should expect mild currents and visibility typically between 5 and 10 metres. Due to the cold water environment, which reaches a maximum of 14 degrees Celsius in summer and maintains a 4-degree bottom temperature, a drysuit is recommended. The site is suitable for beginners, though divers must remain aware of cold water and low visibility hazards. Typical dive times are approximately 45 minutes.

Tallholmen is a reef dive located in the Helsinki region, accessible only by boat. The site features depths ranging from 10 to 15 metres with an average of 14 metres. Divers encounter mild currents and visibility typically around 5 metres, which can fluctuate based on local conditions. Given the water temperature range of 1 to 16 degrees Celsius, a drysuit is strongly recommended. The site is suitable for intermediate divers who are comfortable managing low visibility. Divers should remain aware of their surroundings due to the presence of sharks. A torch is advised for all dives, and it is essential to verify visibility conditions locally before departure.

Soederskaer is a reef site located in the Helsinki Region of Finland, offering depths between 20 and 25 metres with an average of 22 metres. This site requires boat access and is suited for intermediate divers. Visibility is consistently around 5 metres, necessitating close-range observation. Water temperatures fluctuate significantly, ranging from 1C in winter to 16C in summer, and remain cold at depth throughout the year. Dry suits are compulsory for all dives. While currents are generally mild, strong currents are a potential hazard. Divers should exercise caution regarding sharp rocks and maintain buoyancy control to avoid contact with the seabed. The habitat supports typical Baltic and Gulf of Finland reef life.